More code improvements

Updates the deprecated typing imports + more general fixes.

game/bugfix_additions/ActionMod_ren.py

 import renpy
-from typing import List, Set
 from game.major_game_classes.game_logic.Action_ren import Action, Limited_Time_Action
 from game.main_character.MainCharacter_ren import mc
 
-action_mod_list: List['ActionMod'] = []
-crisis_list : List[Action] = []
-morning_crisis_list : List[Action] = []
-limited_time_event_pool : List[Limited_Time_Action] = []
+action_mod_list: list['ActionMod'] = []
+crisis_list : list[Action] = []
+morning_crisis_list : list[Action] = []
+limited_time_event_pool : list[Limited_Time_Action] = []
 
 # proxy methods for type system
 def init_action_mod_disabled(action_mod: 'ActionMod'):      #pylint: disable=unused-argument
@@ -18,7 +17,7 @@ init -1 python:
 """
 
 class ActionMod(Action):
-    _instances : Set['ActionMod'] = set()
+    _instances : set['ActionMod'] = set()
 
     # store instances of mod
     def __init__(self, name, requirement, effect, args = None, requirement_args = None, menu_tooltip = None, priority = 10, event_duration = 99999, is_fast = True,